stdnum
Version:
Standard Number Validation
82 lines • 7.3 kB
JavaScript
import * as exceptions from '../exceptions';
import * as ci from './ci';
import { strings, weightedSum } from '../util';
function clean(input) {
return strings.cleanUnicode(input, ' -.');
}
const impl = {
name: 'Ecuadorian Company Tax Number',
localName: 'Registro Único de Contribuyentes',
abbreviation: 'RUC',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
return strings.splitAt(value, 10).join('-');
},
validate(input) {
const [value, error] = clean(input);
if (error) {
return { isValid: false, error };
}
if (value.length !== 13) {
return { isValid: false, error: new exceptions.InvalidLength() };
}
if (!strings.isdigits(value)) {
return { isValid: false, error: new exceptions.InvalidFormat() };
}
if (!ci.validPrefix(value)) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (parseInt(value[2], 10) < 6) {
const [front, end] = strings.splitAt(value, 10);
if (end === '000') {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
return ci.validate(front);
}
if (value[2] === '6') {
const [front, end] = strings.splitAt(value, 9);
if (end === '0000') {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (weightedSum(front, {
weights: [3, 2, 7, 6, 5, 4, 3, 2, 1],
modulus: 11,
}) !== 0) {
if (end.endsWith('000')) {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
return ci.validate(value.substring(0, 10));
}
}
else if (value[2] === '9') {
const [front, end] = strings.splitAt(value, 10);
if (end === '000') {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
if (weightedSum(front, {
weights: [4, 3, 2, 7, 6, 5, 4, 3, 2, 1],
modulus: 11,
}) !== 0) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
}
else {
return { isValid: false, error: new exceptions.InvalidComponent() };
}
return {
isValid: true,
compact: value,
isIndividual: false,
isCompany: true,
};
},
};
export const { name, localName, abbreviation, validate, format, compact } = impl;
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